blumpkinのようなどんな単語でも探してください。
 
1.
The deep vocal tone produced by putting one's face between a pair of relatively large breasts and talking.
"I was motorboating my girl last night and tried to talk dirty, but it came out in cleav speak. Totally killed the vibe."
Neter Porthによって 2008年09月30日(火)

Words related to cleav speak

motorboating boobs cleav cleavage motorboat speak